Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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DERIVATIVE INSTRUMENTS - Schedule of Cross Currency Swap Derivatives (Details)	Mar. 31, 2019 CHF (SFr)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 CHF (SFr)	Dec. 31, 2018 USD ($)	Oct. 02, 2017 CHF (SFr)	Oct. 02, 2017 USD ($)
Codman \| Cross-currency swap \| Long
Derivative [Line Items]
Aggregate Notional Amount \| SFr					SFr 291,200,000.0
Codman \| Cross-currency swap \| Short
Derivative [Line Items]
Aggregate Notional Amount						$ 300,000,000.0
Cash Flow Hedges \| Designated as Hedging Instrument
Derivative [Line Items]
Aggregate Notional Amount		$ 1,475,000,000
Fair Value Asset (Liability)		(16,676,000)		$ 619,000
Cash Flow Hedges \| Designated as Hedging Instrument \| Codman \| Cross-currency swap
Derivative [Line Items]
Aggregate Notional Amount		33,300,000.0
Fair Value Asset (Liability)		2,715,000		(2,830,000)
Cash Flow Hedges \| Swap One \| Designated as Hedging Instrument \| Codman \| Cross-currency swap
Derivative [Line Items]
Fair Value Asset (Liability)		$ 1,062,000		$ (215,000)
Cash Flow Hedges \| Swap One \| Designated as Hedging Instrument \| Codman \| Cross-currency swap \| Long
Derivative [Line Items]
Fixed Rate	1.75%	1.75%	1.75%	1.75%
Aggregate Notional Amount \| SFr	SFr 64,710,000		SFr 97,065,000
Cash Flow Hedges \| Swap One \| Designated as Hedging Instrument \| Codman \| Cross-currency swap \| Short
Derivative [Line Items]
Fixed Rate	4.38%	4.38%	4.38%	4.38%
Aggregate Notional Amount		$ 66,667,000		$ 100,000,000
Cash Flow Hedges \| Swap Two \| Designated as Hedging Instrument \| Codman \| Cross-currency swap
Derivative [Line Items]
Fair Value Asset (Liability)		$ 575,000		$ (422,000)
Cash Flow Hedges \| Swap Two \| Designated as Hedging Instrument \| Codman \| Cross-currency swap \| Long
Derivative [Line Items]
Fixed Rate	1.85%	1.85%	1.85%	1.85%
Aggregate Notional Amount \| SFr	SFr 48,533,000		SFr 48,533,000
Cash Flow Hedges \| Swap Two \| Designated as Hedging Instrument \| Codman \| Cross-currency swap \| Short
Derivative [Line Items]
Fixed Rate	4.46%	4.46%	4.46%	4.46%
Aggregate Notional Amount		$ 50,000,000		$ 50,000,000
Cash Flow Hedges \| Swap Three \| Designated as Hedging Instrument \| Codman \| Cross-currency swap
Derivative [Line Items]
Fair Value Asset (Liability)		$ 1,078,000		$ (2,193,000)
Cash Flow Hedges \| Swap Three \| Designated as Hedging Instrument \| Codman \| Cross-currency swap \| Long
Derivative [Line Items]
Fixed Rate	1.95%	1.95%	1.95%	1.95%
Aggregate Notional Amount \| SFr	SFr 145,598,000		SFr 145,598,000
Cash Flow Hedges \| Swap Three \| Designated as Hedging Instrument \| Codman \| Cross-currency swap \| Short
Derivative [Line Items]
Fixed Rate	4.52%	4.52%	4.52%	4.52%
Aggregate Notional Amount		$ 150,000,000		$ 150,000,000